From page 2:
"In the third section, I argue that the distress associated with social and/or medical transition among youth who grow up to be cisgender is not meaningfully comparable to the distress associated with delaying or discouraging transition. On the contrary, social and medical transition may be appreciated by many youths who grow up to be cisgender because of the opportunity for exploration that they provide."
From the third section, page 7, the evidence presented to support the conclusion that there's little harm to beginning transition:
"Recent case studies suggest, on the contrary, that transition may be beneficial and appreciated by some youths who grow up to be cis. The composite case of Jamie, described by Jack Turban and Alex Keuroghlian (2018) illustrates this phenomenon. For 13 months, Jamie took testosterone, used the pronoun “he” and wore traditionally masculine clothing. After 13 months, however, Jamie informed the clinical team that, upon reflection, she understood herself to be a queer woman and wished to cease testosterone. Despite retransitioning, Jamie did not regret initiating testosterone nor the physical changes it brought. Instead, “(s)he was adamant that without being allowed to socially transition and experience testosterone therapy, she would not have settled into her identity [as a queer woman]” (Turban & Keuroghlian, 2018, p. 452). Exploring her gender through social and medical transition had been integral to her identity formation, and she was grateful for the opportunity to undertake them. A similar attitude was reported in a person assigned male at birth who eventually settled into a nonbinary identity and discontinued estrogen and puberty blockers (Turban et al., 2018). In a study of 88 minors who initiated hormone therapy at the Callen-Lorde clinic in New York City, both youths who discontinued hormone therapy denied having regrets (Blasdel et al., 2018)."
Going so far as to suggest further down the page:
"...many individuals may benefit from exploring their gender through transition. The gratitude of youths who eventually realize that medical transition is not for them and/or who settle in a gender identity corresponding to the gender they were assigned at birth can be explained by the fact that transition provides a uniquely fertile opportunity for gender exploration."
The author extrapolates from two data points (I may have said two people earlier, if so I apologize, one of the data points had two people, so 3 people total). They took 3 people saying they didn't regret beginning transition, converted lack of regret to the word "gratitude". They conclude, based on wholesale, unempirical rationalization the ultimately cis- people would feel gratitude for the experience of transitioning, explained by a "fact" that has absolutely no evidence whatsoever, one which given any honest consideration flies in the face of the argument for transition in the first place.